Power entry module for next-generation ATCA300 optical transport equipment

FAIRVIEW, Pa., 11 May 2007. Spectrum Power Management Systems in Fairview, Pa., is introducing a power entry module (PEM) that complies to the PICMG ATCA300 PEM specifications providing –48 volts DC power and circuit protection at the equipment interface of an Advanced Telecom Computing Architecture (ATCA300) Optical Transport rack.

FAIRVIEW, Pa., 11 May 2007. Spectrum Power Management Systems in Fairview, Pa., is introducing a power entry module (PEM) that complies to the PICMG ATCA300 PEM specifications providing –48 volts DC power and circuit protection at the equipment interface of an Advanced Telecom Computing Architecture (ATCA300) Optical Transport rack.

This PEM delivers as much as 3.24 kilowatts of uninterrupted, EMI filtered power to the rack through a combined power and signal distribution backplane connector system.

Spectrum's PEM provides provisions for hold-up of 4.0 milliseconds and an inrush current of 5.0 amps maximum. The PEM is reverse polarity protected with a voltage range of –38 volts DC to –75 volts DC, a current rating of 60 amps maximum, 2.6 kilowatts power output, 40 Watts power dissipation, and a temperature range of –10 to 50 degrees Celsius.

The power entry module allows for real time monitoring of system voltage and current, and features multicolored LEDs on the front panel to indicate operating status. The circuit breaker has a visual trip indicator and an accidental "off" feature, and users can monitor the module's status from remote locations via the I2C serial bus.

Either one or two PEMs can be used in ATCA racks and no external mounting hardware is required. For ideal operation the PEM should be installed in or near the main intake cooling air stream of the rack. Spectrum's PEM interfaces with the ATCA backplane through a floating, hi-power, multi-contact connector that facilitates power and signaling to the connected equipment.

For more information contact Spectrum Control online at www.specpower.com.

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